Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
29/02/2024, 11:42
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
Trojan.Win32.Reconyc.exe
Resource
win7-20240221-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
Trojan.Win32.Reconyc.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target Trojan.Win32.Reconyc.exe
- Size 487KB
- Sample240229-nt85lsfh2t
- SHA256 26116658f87b8a84ae436646f34b9832bbf7060842ac960232d87049549581d4
- MD5 09de445a668cfcd6c169dcb30fa5b062
- SHA1 41fc93404b81fae800dce63965eebad4b53bcc33
- SHA512 8c0d8fdea5259052f2b8f19369da572c6f3d14c40c14bb261e9cfd6a2cd5c78474fde789cfb4c3eaffdd60a041819a0c67b1e29d2f79656bc71a637cca516837
- SSDEEP 6144:yiNjjdOCJnUNKMEPDGeoo1HyisWW4g0QTxbGctE6Jm20tdVgWwAidpNCgrBF:TjjwULQoN84XQT08JoVgWwAkAQ
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detects executables packed with ASPack 3 IoCs
resource yara_rule behavioral2/files/0x000a000000023150-9.dat INDICATOR_EXE_Packed_ASPack behavioral2/files/0x00080000000231e4-20.dat INDICATOR_EXE_Packed_ASPack behavioral2/files/0x000300000001e9a0-23.dat INDICATOR_EXE_Packed_ASPack -
resource yara_rule behavioral2/files/0x00080000000231e4-20.dat aspack_v212_v242 - Executes dropped EXE 1 IoCs
pid Process 5044 svchost.exe - Loads dropped DLL 1 IoCs
pid Process 220 Regsvr32.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AUKV.EXE = "C:\\Program Files\\svchost.exe" Trojan.Win32.Reconyc.exe - Enumerates connected drives 3 TTPs 17 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\I: Trojan.Win32.Reconyc.exe File opened (read-only) \??\P: Trojan.Win32.Reconyc.exe File opened (read-only) \??\Q: Trojan.Win32.Reconyc.exe File opened (read-only) \??\V: Trojan.Win32.Reconyc.exe File opened (read-only) \??\E: Trojan.Win32.Reconyc.exe File opened (read-only) \??\G: Trojan.Win32.Reconyc.exe File opened (read-only) \??\L: Trojan.Win32.Reconyc.exe File opened (read-only) \??\M: Trojan.Win32.Reconyc.exe File opened (read-only) \??\J: Trojan.Win32.Reconyc.exe File opened (read-only) \??\K: Trojan.Win32.Reconyc.exe File opened (read-only) \??\N: Trojan.Win32.Reconyc.exe File opened (read-only) \??\S: Trojan.Win32.Reconyc.exe File opened (read-only) \??\H: Trojan.Win32.Reconyc.exe File opened (read-only) \??\O: Trojan.Win32.Reconyc.exe File opened (read-only) \??\R: Trojan.Win32.Reconyc.exe File opened (read-only) \??\T: Trojan.Win32.Reconyc.exe File opened (read-only) \??\U: Trojan.Win32.Reconyc.exe - Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\TIHLNYJ.EXE Trojan.Win32.Reconyc.exe File created C:\Windows\SysWOW64\Ms7002.dll Trojan.Win32.Reconyc.exe - Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\svchost.exe Trojan.Win32.Reconyc.exe File opened for modification C:\Program Files\svchost.exe Trojan.Win32.Reconyc.exe - Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\TIHLNYJ.EXE Trojan.Win32.Reconyc.exe File opened for modification C:\Windows\TIHLNYJ.EXE Trojan.Win32.Reconyc.exe - Modifies registry class 26 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell\open\command Trojan.Win32.Reconyc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\QPWorkFile Trojan.Win32.Reconyc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Ms7002.ShellExecuteHook\Clsid\ = "{7CD4138D-4147-420B-9749-00A13B526785}" Regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell\open Trojan.Win32.Reconyc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command Trojan.Win32.Reconyc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command\ = "C:\\Windows\\TIHLNYJ.EXE \"%1\"" Trojan.Win32.Reconyc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\inifile\shell\open\command Trojan.Win32.Reconyc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command Trojan.Win32.Reconyc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Windows\\TIHLNYJ.EXE %1" Trojan.Win32.Reconyc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7CD4138D-4147-420B-9749-00A13B526785}\InprocServer32 Regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Ms7002.ShellExecuteHook Regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\chm.file Trojan.Win32.Reconyc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "C:\\Windows\\TIHLNYJ.EXE \"%1\"" Trojan.Win32.Reconyc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\inifile\shell\open\command\ = "C:\\Windows\\TIHLNYJ.EXE %1" Trojan.Win32.Reconyc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Ms7002.ShellExecuteHook\Clsid Regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\QPWorkFile svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7CD4138D-4147-420B-9749-00A13B526785}\InprocServer32\ThreadingModel = "Apartment" Regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7CD4138D-4147-420B-9749-00A13B526785}\ProgID Regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command Trojan.Win32.Reconyc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell Trojan.Win32.Reconyc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\QPWorkFile\qp7002 = "C:\\Windows\\SysWow64\\TIHLNYJ.EXE" Trojan.Win32.Reconyc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7CD4138D-4147-420B-9749-00A13B526785}\ = "MaiHook7002" Regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7CD4138D-4147-420B-9749-00A13B526785} Regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7CD4138D-4147-420B-9749-00A13B526785}\InprocServer32\ = "C:\\Windows\\SysWow64\\Ms7002.dll" Regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Ms7002.ShellExecuteHook\ = "MaiHook7002" Regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7CD4138D-4147-420B-9749-00A13B526785}\ProgID\ = "Ms7002.ShellExecuteHook" Regsvr32.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3184 Trojan.Win32.Reconyc.exe 3184 Trojan.Win32.Reconyc.exe 3184 Trojan.Win32.Reconyc.exe 3184 Trojan.Win32.Reconyc.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 5044 svchost.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3184 wrote to memory of 220 3184 Trojan.Win32.Reconyc.exe 92 PID 3184 wrote to memory of 220 3184 Trojan.Win32.Reconyc.exe 92 PID 3184 wrote to memory of 220 3184 Trojan.Win32.Reconyc.exe 92 PID 3184 wrote to memory of 5044 3184 Trojan.Win32.Reconyc.exe 93 PID 3184 wrote to memory of 5044 3184 Trojan.Win32.Reconyc.exe 93 PID 3184 wrote to memory of 5044 3184 Trojan.Win32.Reconyc.exe 93
Processes
-
C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Reconyc.exe"C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.Reconyc.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3184 -
C:\Windows\SysWOW64\Regsvr32.exeRegsvr32.exe C:\Windows\system32\Ms7002.dll /s2⤵
- Loads dropped DLL
- Modifies registry class
PID:220
-
-
C:\Program Files\svchost.exe"C:\Program Files\svchost.exe"2⤵
- Executes dropped EXE
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
PID:5044
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Program Files\svchost.exe
- Size 488KB
- SHA256 7982e50362b6255b22959dfd050d3b7a6d6d0e4660fca83dee8227a8fcfe5c05
- MD5 461ceffd795ff94c2669ac357a95c109
- SHA1 00ce00e846a9b2960fe6ec59e7566e421aefa3ee
- SHA512 4396c2c716caf411e8aeee4c80731e9fef4bf4e898b3ff6c090ed88560ac23e26afb83a419abae62e2302d5690c87c40f5aedff1abba4038ad688d0b11dcb1fa
- SSDEEP 6144:yiNjjdOCJnUNKMEPDGeoo1HyisWW4g0QTxbGctE6Jm20tdVgWwAidpNCgrBF:TjjwULQoN84XQT08JoVgWwAkAQ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\Ms7002.dll
- Size 52KB
- SHA256 f0a7ec2edff7699e546221808f45ca8816a75eb519618283d7c4514dfb9134e0
- MD5 876a2a99b81968f5b26e3cbe12063d2b
- SHA1 7afa8f33b691b2651b65eb07220cc2fda4b7537c
- SHA512 ca0574dbb5ff4b146679ffc38aa794e64470949cd228518d04d3680d63a1ce2f076e38494fa5b6cd0722c2dc3e35c5b5c3b63483c1fa7dc62bca42c4cf8e0ce1
- SSDEEP 1536:riGsIaW7ZyAiXYtkpN/+lIbEGjaussBUoh:riGsIaWwAiXNpN/+eEP9S5h
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\TIHLNYJ.EXE
- Size 488KB
- SHA256 edbc0c76460e2c345b9167146e5dcbbd2c2e986cf0886d47dd067893e3acf979
- MD5 0f1b3db79540c9d49c900164ac2251e8
- SHA1 c1405e1cb7ccf7c1250930e50cd1f0b48473e048
- SHA512 29bee1737376af8780a0237017a712469d2ac60558aabfb0b1575904861ec3539ce6bf91174031ff11f4006ea938a963849bc5301f3e0ce0e23a6746056e18a7
- SSDEEP 6144:yiNjjdOCJnUNKMEPDGeoo1HyisWW4g0QTxbGctE6Jm20tdVgWwAidpNCgrBF:TjjwULQoN84XQT08JoVgWwAkAQ
- MD5 SHA1 SHA512 SSDEEP